Python 3.15 Hits Feature Freeze and Other News for June 2026
While the Northern Hemisphere warms up for summer, Python 3.15 went the other way with its beta 1 feature freeze 🥶. Since May 7, the list of what will be included in the next release is final. That list includes a brand-new sentinel built-in that finally standardizes a pattern Python developers have been hand-rolling for decades.
And while AI kept writing code, buggy or not, developers also directed it to look for bugs in code that had been sitting untouched for years. The results were hundreds of bug fixes in Python’s C extensions and in Firefox. Meanwhile, in a quieter corner of the ecosystem, Pydantic forked httpx, kicking off one of the more interesting governance stories of the year.